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4Pcs Air Fuel Ratio & O2 Sensor Set for Toyota Sienna 3.5L V6 (2011-2016) | 234-9114 234-9128 234-4416 234-4540
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4Pcs Air Fuel Ratio & O2 Sensor Set

for Toyota Sienna 3.5L V6 (2011-2016)
🏷️ Replaces OE: 234-9114 234-9128 234-4416 234-4540
4 left
$72.95
Final: $69.30 -5% OFF
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⚙️ Sensor Installation Blueprint
ENGINE CATALYTIC CONVERTER UPSTREAM (SENSOR 1)Exhaust Manifold (Engine Side) DOWNSTREAM (SENSOR 2)Exhaust Pipe (After Converter)
👨‍🔧 Mechanic's Installation Notes:

This is a COMPLETE SET (Upstream & Downstream). O2 sensors wear out at the same rate (typically 80k-100k miles).
Installation: Upstream sensors screw into the exhaust manifold near the engine. Downstream sensors screw into the pipe after the catalytic converter under the car.

Common Error Codes: P0131, P0171, P0420, P0430
Expert Recommendation: Replacing all sensors together ensures optimal engine performance and saves you from paying mechanic labor costs twice.

Automotive-Leader Sensors

Vehicle Compatible 

Year
Make
Model
Engine/Displacement
2012
Toyota
Sienna
3.5L V6
2013
Toyota
Sienna
3.5L V6
2014
Toyota
Sienna
3.5L V6
2015
Toyota
Sienna
3.5L V6

 

Product Specifications

Warranty & Support: 2 Years + 24/7 Technical Support
Item
Specification
Core Part Number
234-9114 (Upstream Left)
Interchange: 2349114, 234 9114, 89467-0E140, 89467-0R050, 89467-0R060, 89467-21020, 89467-48210, 894670E140, 894670R050, 894670R060, 8946721020, 8946748210
234-9128 (Upstream Right)
Interchange: 2349128, 234 9128, 89467-06140, 89467-06160, 89467-0E170, 89467-33220, 89467-33230, 89467-48190, 8946706140, 8946706160, 894670E170, 8946733220, 8946733230, 8946748190
234-4416 (Downstream Left)
Interchange: 2344416, 89465-0E040, 89465-48220, 894650E040, 8946548220
234-4540 (Downstream Right)
Interchange: 2344540, 89465-08060, 8946508060
Position
Exhaust System (Upstream Left/Right & Downstream Left/Right)
Key Parameters
Upstream Left (234-9114):
- Type: Heated Oxygen Sensor
- Wire Configuration: 4-Wire
- Wire Harness Length: 330 mm / 12.40 IN
- Grade: Regular
- Fitment: Specific Application

Upstream Right (234-9128):
- Type: Heated Oxygen Sensor
- Wire Configuration: 4-Wire
- Wire Harness Length: 16.34 IN (Approx. 415mm)
- Grade: Regular
- Fitment: Specific Application

Downstream Left (234-4416):
- Type: Heated Oxygen Sensor
- Wire Configuration: 4-Wire
- Connector Gender: Male
- Mounting Type: Threaded
- Thread Diameter: 0.708 IN (~M18)
- Wire Harness Length: 10.04 IN (Approx. 255mm)

Downstream Right (234-4540):
- Type: Heated Oxygen Sensor
- Wire Configuration: 4-Wire
- Connector Gender: Female
- Mounting Type: Threaded
- Thread Diameter: 0.708 IN (~M18)
- Wire Harness Length: 16.93 IN (Approx. 430mm)

 

Package Included: 4Pcs O2 Sensors

234-9114*1(4-wire oxygen Sensor): Upstream Left, Bank 2 Sensor 1

234-9128*1 (4-wire oxygen Sensor): Upstream Right, Bank 1 Sensor 1

234-4416*1 (4-wire oxygen Sensor): Downstream Left, Bank 2 Sensor 2

234-4540*1 (4-wire oxygen Sensor): Downstream Right, Bank 1 Sensor 2

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